JHCTech BRAV-7520 User manual

User’s Manual
BRAV-7520/7521
User’s Manual
Ver.A0.1
Date:20, Oct., 2020

User’s Manual
Version Note
No.
Ver.
Note
Date
Writer
1
A0.1
first publish
20201020
Echo

User’s Manual
I
Copyright
The documentation and the software included with this product are copy- righted 2020 by Shenzhen JHC
Technology Development Co., Ltd. All rights are reserved. Shenzhen JHC Technology Development Co.,
Ltd. reserves the right to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted in any form or by any
means without the prior written permission of Shenzhen JHC Technology Development Co., Ltd.
Information provided in this manual is intended to be accurate and reliable. However, Shenzhen JHC
Technology Development Co., Ltd. assumes no responsibility for its use, nor for any infringements of the
rights of third parties, which may result from its use.
Acknowledgements
Award is a trademark of Award Software International, Inc.
IBM, PC/AT, PS/2 and VGA are trademarks of International Business Machines Corporation.
Intel, Skylake and Kabylake are trademarks of Intel Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
RTL is a trademark of Realtek Semi-Conductor Co., Ltd.
All other product names or trademarks are properties of their respective owners.
For more information on this and other JHC products, please visit our websites at:
http://www.jhctech.com.cn

User’s Manual
II
Product Warranty (2 years)
JHC warrants to you, the original purchaser, that each of its products will be free from defects in
materials and workmanship for two years from the date of purchase.
This warranty does not apply to any products which have been repaired or altered by persons other than
repair personnel authorized by JHC, or which have been subject to misuse, abuse, accident or improper
installation.
JHC assumes no liability under the terms of this warranty as a consequence of such events.
Because of JHC.s high quality-control standards and rigorous testing, most of our customers never need
to use our repair service. If an JHC product is defective, it will be repaired or replaced at no charge during
the warranty period. For out-of-warranty repairs, you will be billed according to the cost of replacement
materials, service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU speed, JHC products
used, other hardware and software used, etc.) Note anything abnormal and list any onscreen messages
you get when the problem occurs.
2. Call your dealer and describe the problem. Please have your manual, product, and any helpful
information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandise authorization) number
from your dealer. This allows us to process your return more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement Order Card and a
photocopy proof of purchase date (such as your sales receipt) in a shippable container. A product
returned without proof of the purchase date is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid to your dealer.

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III
Declaration of Conformity
CE
This product has passed the CE test for environmental specifications
when shielded cables are used for external wiring. We recommend the use
of shielded cables. This kind of cable is available from JHC. Please
contact your local supplier for ordering information. Test conditions for
passing included the equipment being operated within an industrial enclosure.
In order to protect the product from being damaged by ESD (Electrostatic
Discharge) and EMI leakage, we strongly recommend the use of
CE-compliant industrial enclosure products.
FCC Class B
Note: This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a resident installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, in which case the user will be required to correct the
interference at his own expense.
Technical Support and Assistance
Step 1. Visit the JHC web site at www.jhctech.com.cn where you can find the latest information about the
product.
Step 2. Contact your distributor, sales representative, or JHC’s customer service center for technical
support if you need additional assistance. Please have the following information ready before you
call:
- Product name and serial number
- Description of your peripheral attachments
- Description of your software (operating system, version, application software, etc.)
- A complete description of the problem
- The exact wording of any error messages

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CONTENTS
General Information ...........................................................................................................1
1.1 Introduction....................................................................................................................................2
1.2 Features...........................................................................................................................................2
1.3 Specifications..................................................................................................................................4
1.3.1 General...............................................................................................................................4
1.3.2 Display...............................................................................................................................4
1.3.3 Ethernet..............................................................................................................................5
1.3.4 Audio .................................................................................................................................5
1.3.5 Power Consumption...........................................................................................................5
1.4 Environmental Specifications.......................................................................................................5
1.5 Order Information.........................................................................................................................6
1.6 Mechanical Specifications.............................................................................................................6
Hardware Installation.......................................................................................................11
2.1 Introduction..................................................................................................................................12
2.2 Jumpers setting............................................................................................................................12
2.2.1 CMOS -Clear CMOS Data jumper.....................................................................................12
2.2.2 ATX- AT/ATX Power on mode selection ..........................................................................13
2.3 I/O Ports Indication.....................................................................................................................13
2.3.1 Ethernet Connector.............................................................................................................15
2.3.2 USB Connector...................................................................................................................16
2.3.3 VGA....................................................................................................................................17
2.3.4 DP.......................................................................................................................................17
2.3.5 DIO Connector....................................................................................................................18
2.3.6 COM Connector..................................................................................................................18
2.3.7 DC Power............................................................................................................................19
2.3.8 Serial ATA...........................................................................................................................20
2.3.9 Serial ATA Power................................................................................................................20

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2.3.10 Remote SW.......................................................................................................................21
2.3.11 Mini-PCIe Connector........................................................................................................21
2.3.12 M.2 connector...................................................................................................................22
2.3.13 PCIe X4 (BRAV-7521).....................................................................................................27
2.3.14 PCIe X8 (BRAV-7521).....................................................................................................27
2.3.15 PCIe X4 (BRAV-7520).....................................................................................................27
2.3.16 PCIeX16 (BRAV-7520)....................................................................................................28
2.3.17 LED...................................................................................................................................28
2.4 Installation....................................................................................................................................29
2.4.1 HDD/SSD Installation (BRAV-7521).................................................................................29
2.4.2 HDD/SSD Installation (BRAV-7520).................................................................................29
2.4.3 Installing M.2......................................................................................................................31
2.4.4 Installing Mini PCIe ...........................................................................................................32
2.4.5 Installing Expansion Functional Module............................................................................33
BIOS Setup.........................................................................................................................36
3.1 BIOS Description.........................................................................................................................37
3.1.1 Entering the Setup Utility...................................................................................................37
3.2 BIOS parameter settings.............................................................................................................38
3.2.1 BIOS Navigation Keys .......................................................................................................39
3.2.2 Main Menu..........................................................................................................................39
3.2.3 Advanced Menu..................................................................................................................41
3.2.4 Chipset Menu......................................................................................................................44
3.2.5 Security menu.....................................................................................................................45
3.2.6 Boot menu...........................................................................................................................46
3.2.7 Save & Exit menu...............................................................................................................47
3.3 Updating the BIOS ......................................................................................................................48
Driver Installation.............................................................................................................49
4.1 Follow the sequence below to install the drivers: .....................................................................50
4.2 Installation: ..................................................................................................................................50
4.4 Utility Software Reference..........................................................................................................51

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SYSTEM RESOURCE .....................................................................................................52
5.1 WDT and GPIO ...........................................................................................................................53

User’s Manual
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General Information
CHAPTER
1

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2
1.1 Introduction
BRAV-7520/BRAV-7521 is an edge computing system forAIOT and industry 4.0 applications of
JHCTECH. It powered by the Gen. 9th Intel® Coffee lake-R CPU, Up to 8-Core, running with
workstation-grade Intel® C246/Q370Chipset. 2-Ch DDR4, 4*SODIMM 2666/2400MHz memory, up to
128GB. Advanced Intel®UHD Graphics 630, supporting DirectX 11.1, OpenGL 5.0 and OpenCL2.1 or
PCIe X16 GPU interface.
BRAV-7520/BRAV-7521 offers 1*VGA, 2*DP, support 3 independent displays, 3*GbE LANs,
6*USB3.1, 4*COM RS232/422/485, 16-bit DIO, 1*F-Mini PCIe with SIM slot, which supports 4G
LTE/Wifi/BT/GPS, it can automatically detect mSATA . 1*M.2 E-Key 2230; 1*M.2 B-Key 3052 with
SIM slot, which supports 5G; 1*M.2 2280 M-Key, support NVMe storage. BRAV-7520 provides
2*2.5”SATA3 (6Gbps) HDD/SSD are used for storage, support raid 0/1/, 1*PCIe X16, support 1*350W
GPU (the length of the GPU must be less than 300mm), 1*PCIe X4 (in X16 slot), support 1*75WAI
Module (the length of the module must be less than 300mm). BRAV-7521 provides 4*2.5”SATA3
(6Gbps) HDD/SSD are used for storage, support raid 0/1/5/10, 2*PCIe X8 (in X16 slot), support 2*350W
GPU (the length of the GPU must be less than 300mm), 2*PCIe X4 (in X16 slot), support 2*75WAI
Module (the length of the module must be less than 300mm), up to 7 extension slots can be supported.
DC 12V power supply, workstation level system performance, rich expansion flexibility, industrial level
product design which is very suitable for industrial automation, AI edge computing, small intelligent
workstations, multimedia service systems, high-precision machine vision and so on.
1.2 Features
Key Features
9th generation Intel®Xeon®/Core™ i7/i5/i3 (Coffee Lake-R)
Workstation-grade Intel®C246/Q370 chipset
Large memory, 4*DDR4 up to 128G ECC/non-ECC
UHD dual 4K and 3 independent displays, 2*DP+1*VGA
3* Gig-LAN ,Opt. Multi-ch 10Gig-SFP
Multi-ch PCIe standard slot, supports multiple high - speed extension interface modules
Super storage configuration,4*SATA3.0, 1*M.2 2280 M-Key
Support AMT12.0, Intel® iVpro and TPM2.0

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CPU fanless, AI/GPU efficient fan cooling design
Super deep learning ability, support dual 350W GPU/ 75W PGPU/AI acceleration card
型号
规格参数
BRAV-7520-
S001
BRAV-7520-
S002
BRAV-7521-
S001
BRAV-7521-
S002
CPU
Intel®
Coffeelake-R
LGA1151 CPU
Intel®
Coffeelake-R
LGA1151 CPU
Intel®
Coffeelake-R
LGA1151 CPU
Intel®
Coffeelake-R
LGA1151 CPU
芯片组
Intel®Q370
Intel®C246
Intel®Q370
Intel®C246
Mermory
4*DDR4
最大128GB
4*DDR4
最大128GB
4*DDR4
最大128GB
4*DDR4
最大128GB
LAN
3
3
3
3
USB3.1
6
6
6
6
USB2.0
2
2
2
2
COM
4
4
4
4
DIO
16-bit Iso.
DIO
16-bit Iso.
DIO
16-bit Iso.
DIO
16-bit Iso.
DIO
DP
2
2
2
2
VGA
1
1
1
1
PCIe
1*PCIe X16,
1*PCIe X4
1*PCIe X16,
1*PCIe X4
2*PCIe X8,
2*PCIe X4
2*PCIe X8,
2*PCIe X4
Mini PCIe
1
1
1
1
M.2
1*M.2 E-Key,
1*M.2 E-Key,
1*M.2 E-Key,
1*M.2 E-Key,

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1*M.2 B-Key,
1*M.2 M-Key
1*M.2 B-Key,
1*M.2 M-Key
1*M.2 B-Key,
1*M.2 M-Key
1*M.2 B-Key,
1*M.2 M-Key
2.5”SSD
2
2
4
4
Power input
DC 12V
DC 12V
DC 12V
DC 12V
1.3 Specifications
1.3.1 General
CPU: 9th generation Intel®Xeon®/Core™ i7/i5/i3 (Coffee Lake-R)
System Memory: 4*DDR4 2666/2400MHz DIMM, Up to 128GB（When installing 4*DDR4, first
install the upper two slots and then the lower two slots.）
Watchdog Timer: 255-level interval timer, setup by software
Serial Ports: 2* RS232/422/485 DB9 male, 2*RS232 DB9 male
USB: 6*USB 3.1 gen2 Type A, 2*USB2.0 Type A
DIO: 16-bit Iso.DIO (2*10Pin Phoenix), 8-bit Iso. DI (High:5-24V,Low:0-1.5V) and 8-bit Iso.
DO(200mA)
Expansion Interface:
1*Full size Mini PCIe (PCIeX1+USB) with SIM slot
1*M.2 E-Key 2230
1*M.2 B-Key 3052& SIM slot, Support 5G
1*M.2 2280 M-Key(Gen3, PCIeX4)，Support NVMe storage
1*PCIe X16, support 1*350W GPU (BRAV-7520)
1*PCIe X4 (in X16 slot) support 1*75W AI Module (BRAV-7520)
2*PCIe X8, support 2*350W GPU (BRAV-7521)
2*PCIe X4 (in X16 slot) support 2*75W AI Module (BRAV-7521)
Note：The length of the GPU and AI Module must be less than 300mm
Storage:
2*2.5" HDD SATA bay,（BRAV-7520）
4*2.5" HDD SATA bay,（BRAV-7521）
1.3.2 Display
Chipset: Intel®UHD Graphics
Display Memory: Shared system memory
Resolution: VGA 1900x1200@60Hz; DP 4096x2160@60Hz

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1.3.3 Ethernet
Chipset: 2*Intel®I210AT Ethernet controllers
1* Intel® I219LM Ethernet controller, supports iAMT 12.0
Speed: 10/100/1000 Mbps Integrated
Interface: 3*RJ45
1.3.4 Audio
Chipset: Realtek ALC662VD controller
Interface: 1*Line-out, 1*MIC, 3.5mm phone jack
1.3.5 Power Consumption
Power Consumption:
BRAV-7520: TDP 12V/27A （I7-8700 CPU 32GB DDR4 1*2080TI GPU）
BRAV-7521: TDP 12V/47A （I7-8700 CPU 32GB DDR4 2*2080TI GPU）
Power Supply: DC 12V,5-Pin phoenix
1.4 Environmental Specifications
Operating temperature:
BRAV-7520: -20~60℃（35W/65W CPU No GPU）
BRAV-7520: 0~45℃（35W /65W CPU 1*2080TI GPU）
BRAV-7521: -20~60℃（35W/65W CPU No GPU）
BRAV-7521: 0~45℃（35W/65W CPU 2*2080TI GPU）
Relative humidity: 10~90% @ 40°C (non-condensing)
Storage temperature: -40 ~ 85°C (-40 ~ 185°F)
Vibration loading during operation:
With SSD: 5.0 Grms, random, 5 ~ 500 Hz
With HDD:1.0 Grms, random, 5 ~ 500 Hz
Shock during operation:
With SSD: 50g, peak acceleration (11 ms duration)
With HDD:20g peak acceleration (11 ms duration)
EMC: CE, FCC Class B

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1.5 Order Information
Model No.
Introduction
BRAV-7520/S001
Edge Computing system, Intel® Coffeelake-R LGA1151 CPU, Q370 PCH, 4*DDR4,
3*LAN, 6*USB3.1, 2*USB2.0，4*COM, 1*Mini PCIe, M.2 E-Key, M.2 B-Key,
1*PCIe X16, 1*PCIe X4, 1*VGA, 2*DP, Audio out, Mic, 16-bit Iso.
DIO, 2*2.5" SATA, 1*M.2 2280 M-Key, DC 12V.
BRAV-7520/S002
Edge Computing system, Intel® Coffeelake-R LGA1151 CPU, C246 PCH, 4*DDR4,
3*LAN, 6*USB3.1, 2*USB2.0，4*COM, 1*Mini PCIe, M.2 E-Key, M.2 B-Key,
1*PCIe X16, 1*PCIe X4, 1*VGA, 2*DP, Audio out, Mic, 16-bit Iso.
DIO, 2*2.5" SATA, 1*M.2 2280 M-Key, DC 12V.
BRAV-7521/S001
Edge Computing system, Intel® Coffeelake LGA1151 CPU, Q370 PCH, 4*DDR4,
3*LAN, 6*USB3.1, 2*USB2.0，4*COM, 1*Mini PCIe, M.2 E-Key, M.2 B-Key,
2*PCIe X8, 2*PCIe X4, 1*VGA, 2*DP, Audio out, Mic, 16-bit Iso. DIO, 4*3.5"
SATA, 1*M.2 2280 M-Key, DC 12V.
BRAV-7521/S002
Edge Computing system, Intel® Coffeelake LGA1151 CPU, C246 PCH, 4*DDR4,
3*LAN, 6*USB3.1, 2*USB2.0，4*COM, 1*Mini PCIe, M.2 E-Key, M.2 B-Key,
2*PCIe X8, 2*PCIe X4, 1*VGA, 2*DP, Audio out, Mic, 16-bit Iso. DIO, 4*3.5"
SATA, 1*M.2 2280 M-Key, DC 12V.
1.6 Mechanical Specifications
The BRAV-7520/BRAV-7521 is the edge computing system of JHCTECH, consists of a JHC OSBC
single board computer (AXM-I960) and the Sub-card (ECB-9600、OFX-1000、ECX-254、ECX-255)
of JHC, and installed in the universal aluminum rectangular profile housing. Among them, sub-card ECX-
254 is only assembled in BRAV-7521, sub-card ECX-255 is only assembled in BRAV-7520.

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Main Board Front (AXM-I960)
Figure 1.1
Main Board Rear (AXM-I960)
Figure 1.2
Sub-card (ECB-9600)
Figure 1.3

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Sub-card (OFX-1000)
Figure 1.4
Sub-card (ECX-254)---BRAV-7521
Figure 1.5
Sub-card (ECX-255)---BRAV-7520
Figure 1.6

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BRAV-7520 Fornt
Figure 1.7
BRAV-7521 Fornt
Figure 1.8

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BRAV-7520 Dimension: Unit: mm
Figure 1.9
BRAV-7521 Dimension: Unit: mm
Figure 1.10

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Hardware Installation
CHAPTER
2

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2.1 Introduction
The following sections show jumpers settings and the external connectors and pin assignments for
applications.
2.2 Jumpers setting
The BRAV-7520/BRAV-7521 Box Computer has a number of jumpers that allows you to configure your
system to suit your application. The table below shows the function of each of the board’s Jumpers:
Jumpers
Jumpers
Name
Description
CLEAR/CMOS
Clear CMOS Data Setting
Jumper
AT/ATX
Set Power-on mode at AT or ATX
Jumper
2.2.1 CMOS -Clear CMOS Data jumper
Figure 2. 1
If you encounter the followings
a) CMOS data becomes corrupted.
b) You forget the supervisor or user password.
you can reconfigure the system with the default values stored in the ROM BIOS.
To load the default values stored in the ROM BIOS, please follow the steps below.
1. Power-off the system and unplug the power cord.
2. Set CMOS pins 2 and 3 to On. Wait for a few seconds and set CMOS back to its default setting,
pins 1 and 2 On.
3. Now plug the power cord and power-on the system.